Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Pointer light tracking method, program, and recording medium thereof










Image Number 12 for United States Patent #8049721.

A pointer light tracking method wherein all black image and white square images located at four corners of the all black image are projected on the display, the display on which the all black image and the white square images are displayed is shot by a camera, a domain corresponding to the white square image is extracted from the obtained image data, central coordinates (x, y) of the extracted domain are computed, and a parameter necessary in performing distortion correction by use of projection conversion for coordinate expressing the position of the pointer light on the display is computed from the computed central coordinates (x, y) and central coordinates (X, Y) of the white square image.








 
 
  Recently Added Patents
Faucet
Display systems with touch screens
Caprazene as a novel compound and derivatives thereof, and caprazol as a novel compound and derivatives thereof
Soft co-processors to provide a software service function off-load architecture in a multi-core processing environment
Using rule induction to identify emerging trends in unstructured text streams
Gemstone
Image processing apparatus, image forming system, and computer-readable storage medium
  Randomly Featured Patents
Diversity system and diversity method
Electrolyte for lithium ion secondary battery and lithium ion secondary battery comprising the same
Graphics controller providing flexible access to a graphics display device by a host
P-channel MOS transistor, semiconductor integrated circuit device and fabrication process thereof
Combination illuminating inverse function power indicator and a brake light
Memory cell device and manufacturing method
Golf shoe and golf club cleaning device
Information processing apparatus which discriminates whether or not input information is stored in memory and controlling the switching from a first control program to a second control program
Method and an apparatus for growing a silicon single crystal from a melt
Stabilized activated oxygen and pharmaceutical compositions containing said stabilized activated oxygen